Mendelian Inheritance

Question 1

Numerical chromosomal abnormalities are called

Answer 1

Aneuploidy. Example, monsomy- Turner syndrome
Trisomy- down syndrome
Tetrasomy..

Question 2

Monosomy of the sec chromosomes, 45X causese?

Answer 2

Turner syndrome

Question 3

Down syndrome is caused by

Answer 3

Presence of an extra chromosome on chromosome 21

Called trisomy 21

Question 4

Trisomy of the sex chromosome causes

Answer 4

Klinefelter syndrome. Gynaecomastia in pectoral region and breast

Question 5

Examples of x linked dominant inheritance diseases

Answer 5

Fragile x syndrome

Incontinentia pigmenti

Question 6

Examples of sex linked recessive disorders

Answer 6

Color blindness

Haemophelia

Question 7

Y linked inheritance

Answer 7

Holandric inheritance

Question 8

Examples of y linked diseases

Answer 8

Hairy ears

Y chromosomes infertility

Question 9

Y chromosomes infertility causes

Answer 9

Caused by deletions of genes in the AZF regions

Question 10

Types of chromosomal mutations

Answer 10

Numerical (Aneuploidy)

Monsomy
Trisomy
Tetrasomy

Structural

Deletions
Inversions
Translocations
Duplications